I think the matrix organization is best simply because the advantages are centered around multiple control. There always a second opinion. Thought that can be difficulty to deal with sometime and may cause delays, it gives a higher degree to validation behind all the decision made. I think that the success of individual groups depends on all the moving parts ability to recognize their own strengths and weaknesses. But as a whole I think the matrix organization has a more structured system for success when considering the advantages vs, the disadvantages.